Prevalence and determinants of contraception utilization over time in Migori County, Kenya: Repeated cross-sectional household surveys

Contraception use and family planning have been shown to save lives and benefit women, their families, and their communities. We conducted a cross-sectional study analyzing data from a 2021 survey that was conducted across eight different regions in Migori County, Kenya to examine the potential role that different factors play in meeting family planning targets. Comparisons are made to data collected in 2018/2019 in order to estimate the change over time of contraception uptake. Descriptive statistics were calculated, the Cochran--Mantel--Haenszel test was used to compare contraception use over time, and multivariable logistic regression was used to model determinants of contraceptive use. Sixty-four percent of respondents in 2021 reported that they currently use some form of contraception, and implants are the most popular contraceptive method. Factors associated with higher contraception usage were region, ages 25-34 years, and marital status. Contraception uptake increased significantly in East Kamagambo following a community-driven sexual and reproductive health intervention by the Lwala Community Alliance, suggesting that increased investment in family planning may be influential. We recommend targeted outreach to population groups with low uptake of contraception and investment in both demand- and supply-side interventions to increase contraceptive uptake. Additional research, especially for populations under 18, is needed to further inform effective investment and policy. (Afr J Reprod Health 2023; 27 [6]: 17-26). Keywords: Contraception; family planning; Kenya Il a ete demontre que l'utilisation de la contraception et la planification familiale sauvent des vies et profitent aux femmes, a leurs familles et a leurs communautes. Nous avons mene une etude transversale analysant les donnees d'une enquete de 2021 qui a ete menee dans huit regions differentes du comte de Migori, au Kenya, pour examiner le role potentiel que differents facteurs jouent dans la realisation des objectifs de planification familiale. Des comparaisons sont faites avec les donnees recueillies en 2018/2019 afin d'estimer l'evolution dans le temps du recours a la contraception. Des statistiques descriptives ont ete calculees, le test de Cochran-Mantel-Haenszel a ete utilise pour comparer l'utilisation de la contraception dans le temps et une regression logistique multivariee a ete utilisee pour modeliser les determinants de l'utilisation de la contraception. Soixante-quatre pour ce